diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt
index 23066600e67..b5c310e0e40 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt
@@ -321,13 +321,13 @@ internal class KonanSymbols(
             }
 
     val arrayContentToString = arrayToExtensionSymbolMap("contentToString") {
-        lookup.isExtensionReceiverNullable(it) == false
+        lookup.isExtensionReceiverNullable(it) == true
     }
     val arrayContentHashCode = arrayToExtensionSymbolMap("contentHashCode") {
-        lookup.isExtensionReceiverNullable(it) == false
+        lookup.isExtensionReceiverNullable(it) == true
     }
     val arrayContentEquals = arrayToExtensionSymbolMap("contentEquals") {
-        lookup.isExtensionReceiverNullable(it) == false
+        lookup.isExtensionReceiverNullable(it) == true
     }
 
     override val arraysContentEquals by lazy { arrayContentEquals.mapKeys { it.key.defaultType } }
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DataClassOperatorsLowering.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DataClassOperatorsLowering.kt
index 599ec5c1469..93dbddbf53b 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DataClassOperatorsLowering.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/DataClassOperatorsLowering.kt
@@ -6,17 +6,15 @@
 package org.jetbrains.kotlin.backend.konan.lower
 
 import org.jetbrains.kotlin.backend.common.FileLoweringPass
+import org.jetbrains.kotlin.backend.common.lower.at
 import org.jetbrains.kotlin.backend.common.lower.createIrBuilder
-import org.jetbrains.kotlin.backend.common.lower.irBlock
 import org.jetbrains.kotlin.backend.konan.Context
 import org.jetbrains.kotlin.ir.IrStatement
-import org.jetbrains.kotlin.ir.builders.*
 import org.jetbrains.kotlin.ir.declarations.IrFile
 import org.jetbrains.kotlin.ir.declarations.IrFunction
 import org.jetbrains.kotlin.ir.expressions.IrCall
 import org.jetbrains.kotlin.ir.expressions.IrExpression
 import org.jetbrains.kotlin.ir.types.classifierOrFail
-import org.jetbrains.kotlin.ir.types.isNullable
 import org.jetbrains.kotlin.ir.util.irCall
 import org.jetbrains.kotlin.ir.visitors.IrElementTransformer
 
@@ -56,24 +54,8 @@ internal class DataClassOperatorsLowering(val context: Context) : FileLoweringPa
             // TODO: use more precise type arguments.
             val typeArguments = (0 until newCallee.typeParameters.size).map { irBuiltins.anyNType }
 
-            if (!argument.type.isNullable()) {
-                irCall(newCallee, typeArguments).apply {
-                    extensionReceiver = argument
-                }
-            } else {
-                irBlock(argument) {
-                    val tmp = irTemporary(argument)
-                    val call = irCall(newCallee, typeArguments).apply {
-                        extensionReceiver = irGet(tmp)
-                    }
-                    +irIfThenElse(call.type,
-                        irEqeqeq(irGet(tmp), irNull()),
-                        if (isToString)
-                            irString("null")
-                        else
-                            irInt(0),
-                        call)
-                }
+            irCall(newCallee, typeArguments).apply {
+                extensionReceiver = argument
             }
         }
     }